4
Glove-type input device is … essential device for VR used to obtain hand postures expensive Price of the device would be higher than the price of a car.. 4 Still expensive as the price of the glove available for sign capturing

5
Proposed the method to define the minimum number of sensors to capture a set of the given hand posture ( in ICDVRAT2010 ) Estimated that a data-glove equipped with six low-resolution sensors could measure hand postures expressed in Japanese Finger spelling of Japanese Sign language. 5 Possibility to decide a number of sensors for user’s demands

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To make a prototype of data-glove with six sensors for Japanese finger spelling. To evaluate the prototype 6 Prototype

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All the code are identified with simple switches proposed problem reduces to a set cover problem All the code are not identified with simple switches proposed problem selects a brute-force method 10 2. Seeing if proposed optimizing problem reduces to a set cover problem Code-sensor relation table( with simple switches) Pairwise code-sensor relation table

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Minimum number of sensor : six sensors Five bending sensors ( yellow ) one contact sensor (red) 12 Sensor Layout A set cover for Japanese Finger spelling

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Prototype Is applying to the existing StrinGlove TM Consists of five two-bits bend sensors and one one-bit contact sensor 13 Prototype

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The prototype is evaluated Subject expressed the 28 hand postures of Japanese finger spelling by the prototype. Total number of subjects three (female : two, male : one) 14 the 28 hand postures of Japanese finger spelling

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The prototype distinguished about 82 % of the given hand postures. The main cause of errors were the two sensors, no.5 and no.6. 15

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Sensor no.6 :one of the main cause of errors A contact sensor used for measuring the contact between middle and ring fingers. A proximity sensor was utilized as the contact sensor and the sensor sometimes misfires. Even when the distance between two fingers is not zero. Sensor ‘s size is large 16 It may be useful to use sensor instead of the proximity sensor and to downsize the sensor

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Sensor no.5 :one of the main cause of errors No.5 is the bending sensor for measuring angle of DIJ of pinkie. The slip between glove and pinkie might cause a lot of error. It may clear that a single sensor measurement error becomes fatal error under the optimized data-glove. 17 more stretchable material to fit the glove tightly

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We made a prototype of data-glove for Japanese finger spelling. The prototype is a data-glove with six sensors. The prototype was evaluated. The prototype distinguished about 82 %. The prototype failed to distinguish the given hand postures because of simple error of sensors. It would be necessary to improve some sensors. 18